HOXD8 exerts a tumor-suppressing role in colorectal cancer as an apoptotic inducer
Journal article
Mansour, M.A. and Senga, T. (2017). HOXD8 exerts a tumor-suppressing role in colorectal cancer as an apoptotic inducer. The international journal of biochemistry & cell biology. 88, pp. 1-13. https://doi.org/10.1016/j.biocel.2017.04.011
| Authors | Mansour, M.A. and Senga, T. |
|---|---|
| Abstract | Homeobox (HOX) genes are conserved transcription factors which determine the anterior-posterior body axis patterning. HOXD8 is a member of HOX genes deregulated in several tumors such as lung carcinoma, neuroblastoma, glioma and colorectal cancer (CRC) in a context-dependent manner. In CRC, HOXD8 is downregulated in cancer tissues and metastatic foci as compared to normal tissues. Whether HOXD8 acts as a tumor suppressor of malignant progression and metastasis is still unclear. Also, the underlying mechanism of its function including the downstream targets is totally unknown. Here, we clarified the lower expression of HOXD8 in clinical colorectal cancer vs. normal colon tissues. Also, we showed that stable expression of HOXD8 in colorectal cancer cells significantly reduced the cell proliferation, anchorage-independent growth and invasion. Further, using The Cancer Genome Atlas (TCGA), we identified the genes associated with HOXD8 in order to demonstrate its function as a suppressor or a promoter of colorectal carcinoma. Among inversely related genes, apoptotic inhibitors like STK38 kinase and MYC were shown to be negatively associated with HOXD8. We demonstrated the ability of HOXD8 to upregulate executioner caspases 6 & 7 and cleaved PARP, thus inducing the apoptotic events in colorectal cancer cells. |
| Year | 2017 |
| Journal | The international journal of biochemistry & cell biology |
| Journal citation | 88, pp. 1-13 |
| Publisher | Elsevier |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biocel.2017.04.011 |
| Publication dates | |
| 27 Apr 2017 | |
| Publication process dates | |
| Accepted | 26 Apr 2017 |
| Deposited | 10 Aug 2020 |
| Accepted author manuscript | License File Access Level Open |
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